单原子催化剂介导的N6甲基氨酸甲基化促进癌症免疫疗法
Mengyu Sun1,2, Xuemeng Liu1,2, Zhengwei Liu1
1Laboratory of Chemical Biology and State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, Jilin, P. R. China.
Journal of the American Chemical Society
|March 15, 2024
概括
新的硫添加铁单原子催化剂 (Fe-SA) 可实现精确的生物对角催化. 这些催化剂通过N6甲基氨酸 (m6A) 甲基化重新编程瘤相关的巨细胞,以加强癌症免疫疗法.
科学领域:
- 生物化学和分子生物学
- 材料科学
- 纳米技术
背景情况:
- 生物直角反应对于在体内操纵生物过程至关重要.
- 现有的过渡金属催化剂 (TMC) 在生理环境中具有较低的原子利用率和中等效率.
研究的目的:
- 开发新型单原子催化剂,用于增强生物对角催化.
- 通过m6A甲基化证明这些催化剂在癌症免疫疗法重编程中的应用.
主要方法:
- 制造具有均活性位点的硫化Fe单原子催化剂 (Fe-SA).
- 用于瘤相关巨细胞 (TAMs) 的改Fe-SA纳米催化剂 (Fe-SA@Man NCs) 的开发.
- 在 m6A 编写主动剂前药物 (pro-MPCH) 的现场激活和巨分化和癌细胞杀伤的评估.
主要成果:
- Fe-SA@Man NC有效地向TAM并对METTL3/14复合蛋白表达进行上调.
- 这些纳米催化剂表现出类似氧化酶的活性,促进了甲基化和活性氧物种 (ROS) 的产生.
- 重新编程的M1巨细胞引发了免疫反应,抑制了瘤的扩散.
结论:
- 原子分散的Fe-SA催化剂具有强大的生物对角催化活性.
- 使用Fe-SA@ManNCs的m6ARNA甲基化提供了癌症免疫治疗的有希望的策略.
- 这种方法为通过精确控制RNA修饰来治疗疾病提供了新的见解.
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